LG Chem RESU: Battery Review & Guide

LG is no stranger to energy storage products, offering a range of solar panels and batteries for Aussies looking to become less dependent on the power grid. The South Korean multinational is renowned for its presence in the electronics space and is widely considered a trustworthy brand, but how do its solar batteries stack up against the rest? Canstar Blue reviews the LG Chem RESU range to help you make an informed decision when choosing a solar storage system for your home.

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What is the LG Chem RESU?

The LG Chem RESU (Residential Energy Storage System) is a versatile battery choice for households, which can be wall mounted inside or installed on semi-outdoor locations, like carports or patios. LG Chem RESU 48V batteries come in a variety of sizes, from 3.3kWh to 13kWh, as well as the RESU Plus, a powerful expansion kit of 400V, designed to cross connect with all 48V models.

Like other solar batteries on the market, the LG Chem RESU stores power generated from your solar panels during the day, for household energy usage at night. The LG Chem RESU comes with its own app, whereby customers can monitor their system’s performance and output, which is pretty handy for identifying energy usage habits.

The larger LG RESU10 model is suitable for a family household, with a peak output of 4.6kWh and a lengthy ten-year warranty. Another point of difference is that the LG Chem RESU products are approved by the Clean Energy Council, meaning each battery storage system meets Australian standards.

Something that sets the LG Chem RESU apart from its competitors, including the Tesla Powerwall and SonnenBatterie Eco, is its weight, coming in significantly lighter than these other major brands. Other notable features include its simplified inverter connections, a capacity retention of 80 per cent after ten years, and an exceptional safety record. The Chem RESU series come in gold or silver colour options, and are aesthetically pleasing compared to other products on the market.

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LG Chem RESU Specs

Model

LG RESU6.5 (48V)

LG RESU10 (48V)

Total energy

6.5kWh

9.8kWh

Usable energy

5.9kWh

8.8kWh

Capacity

126 Ah

189 Ah

Weight

52kg

75kg

Dimensions (H x W x D)

45.2cm x 65.4cm x 12cm

45.2cm x 48.3cm x 22.7cm

Nominal voltage

42-58.8

42-58.8

Max power

4.2kWh

5kWh

Peak power

4.6kWh

7kWh

Enclosure protection rating

IP55

IP55

Cell technology

Lithium-ion battery

Lithium-ion battery

Communication

CAN 2.0 B

CAN 2.0 B

Operating mode

Single or 3 phase

Single or 3 phase

Temperature range

-10°C to 45°C

-10°C to 45°C

Warranty

10 years

10 years

This information is sourced from lgesspartner.com

LG Chem RESU Price

The cost of the LG Chem RESU series will depend on the storage system you choose, your address, and your choice of installer. As a general guide, LG Chem RESU 48V batteries cost about $4,500 for the small 3.3kWh system, $6,500 for the medium 6.5kWh, $8,800 for the large 10kWh battery, and about $10,500 for the larger 13kWh 48V battery.

Bear in mind the above price estimations do not factor in the additional cost of installation, and expect to pay more for the two larger 400V models. Given the LG Chem range on offer, it’s best to do some research so you know exactly which system will benefit your household most. To receive an accurate quote for your home, get in contact with a certified LG Chem RESU installer. It’s also worth noting that you should keep an eye out for the most competitive solar feed-in tariffs in your area.

Should I choose an LG Chem RESU battery?

With household energy prices on the rise, investing in a battery storage system may save you a bit of money over a long period of time. The LG Chem RESU series seems to be a solid alternative to other batteries on the market, and has a wide range of solar inverter compatibility, which is great if you’re looking to take one more step away from the grid.

However, given the massive upfront costs of a battery, it’s a good idea to weigh up your personal circumstances and calculate whether or not there’ll be a return on investment. Remember, savings will generally be seen over time as your household becomes more energy self-sufficient, which is why choosing the right solar battery system shouldn’t be rushed into.

The LG Chem RESU batteries may well provide some bang for your buck, claiming to offer easier installation due to its compact and lightweight design. If the time has come to reduce your carbon footprint and you’re looking to store your energy as reliably as possibly, then the LG Chem RESU battery could be a good addition. However, if you’re new to solar power and weighing up the costs involved, it may be worth reviewing the solar energy providers available in your state.

To our knowledge, all information in articles on the Canstar Blue website was correct at the time of publication. This information may have changed over time. Refer to the product fact sheet (or relevant similar documentation) before making any purchase decision. Canstar Blue's website terms and conditions apply.